BobVila.com

Clipped Gable

http://www.ohs.org/education/oregonhistory/narratives/subtopic.cfm?subtopic_ID=504

"Eave return: a roof edge that makes an acute inward turn for a short distance on the gable end of a building. This is a decorative element of the Greek revival style."

However they may not be shingled, just trim.

http://www.ypsilanti.org/print/tour.htm

5. The next official stop on the tour is 303 N. Huron.

This person calls it an eyebrow return.

http://www.dlnhs.org/douglastonhill/dhbldgsurvey.cfm
This calls it a cornice return or shingled cornice return if shingled.

And a full eave return if the shingled portion extends all the way across the gabel end.

http://www.ontarioarchitecture.com/cornicer.html

More Cornice Returns.